Sulaiman Ginting, S. Edy Sumantri, Fenty Maimunah Simbolon, and Syamsafitri. 2021. “INCREASING THE EFFECTIVENESS OF SOME TYPES OF ATTRACTANTS THROUGH SEVERAL TYPES OF DISPENSERS AGAINST FRUIT FLY PESTS (Bactrocera Spp. ) ON GUAVA PLANTS (Psidium Guajava L. )”. MEDALION JOURNAL: Medical Research, Nursing, Health and Midwife Participation 2 (1):188-96. https://doi.org/10.59733/medalion.v2i1.92.